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Finding the Fourth Proportional to 707,651.10, 976,559.58 and 385,362.54

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Solution

The fourth proportional to 707,651.10, 976,559.58 and 385,362.54 is: 531,800.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,651.10 : 976,559.58 = 385,362.54 : x
  2. Step 2: Convert to fraction form
    707,651.10/976,559.58 = 385,362.54/x
  3. Step 3: Cross multiply
    707,651.10x = 976,559.58 × 385,362.54
  4. Step 4: Simplify right side
    707,651.10x = 376,329,480,210.13
  5. Step 5: Solve for x
    x = 376,329,480,210.13/707,651.10
  6. Step 6: Final answer
    x = 531,800.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.